High pressure pump with drive end suction side



E. F. OGLES Jan. 16, 1968 HIGH PRESSURE PUMP WITH DRIVE-END SUCTION SIDE 4 SheetsShee t 1 Filed Oct. 8, 1965 Fig.

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W1 E 3 .m M w a E M Jan. 16, 1968 E. F. OGLES 3,353,576

HIGH PRESSURE PUMP WITH DRIVE END SUCTION SIDE Filed OOt. a, 1965 4 Sheets-Sheet 2 Fig. 2

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BY W -Mam Jan. 16, 1968 E. F. OGLES 3,363,576

HIGH PRESSURE PUMP WITH DRIVE END SUCTION SIDE Filed Oct. 8, 1965 4 Sheets-Sheet 4.

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Auormy:

United States Patent C) P 3,363,576 HIGH PRESSURE PUMP WITH DRIVE END SUCTION SIDE Etln-idge F. Ogles, Rte. 4, Ada, Okla. 74820 Filed Oct. 8, 1965, Ser. No. 494,027 8 Claims. (Cl. 103103) ABSTRACT OF THE DISCLGSURE A centrifugal pump having a central suction in which the drive shaft therefor extends through the inlet and a tangential outlet. An impeller is disposed Within the pump casing and is separated from the outlet by a deflector assembly which deflects liquid from the periphery of the impeller axially into an annular column around the casing defined by an annular flange or ring for discharge through the tangential outlet. The casing is constructed in a sectional manner so that intermediate casing sections and duplicate impeller and deflector arrangements may be provided for providing a multiple stage pump.

The present invention generally relates to a high pressure pump of the rotary type especially useful in but not limited to use in pumping a relatively large volume of liquid at a relatively high pressure.

An object of the present invention is to provide a deep well pump of the rotary centrifugal type having a cen tral inlet and a tangential discharge for use in a deep well pumping operation for pumping salt water or other liquids at a relatively high pressure and high volume in which the suction side of the pump is orientated on the drive end of the pump with the inlet or suction pipe arranged concentrically with the drive shaft over a portion of the length of the shaft.

A further object of the present invention it is provide a high pressure pump in accordance with the preceding object in which the pump includes a rotatable impeller having spiral vanes on one surface thereof together with a stationary plate or deflector for guiding and deflecting water from the periphery of the impeller to the discharge outlet.

Another important object of the present invention is to provide a rotary pump in accordance with the preceding objects having a casing structure as well as a shaft structure which enables the portion of the casing having the discharge outlet therein to be removed and replaced with an intermediate casing or a plurality of intermediate casing sections to enable the pump to be converted from a single stage pump to a multiple stage pump with each intermediate section including a partition plate which includes spiral vanes on the surface thereof for guiding water from the outer periphery of the guiding and deflecting stationary plate through an opening in the center of the intermediate sections.

Yet another important feature of the present invention is to provide a rotary centrifugal pump of the type set forth previously in which the suction side orientated at the drive end of the pump enables the incoming water or liquid to cool the seal structure for the rotating shaft thus prolonging the life thereof.

Still another important object of this invention is to provide a rotary pump having a sectional shaft and a tapered bearing assembly for enabling the position of the shaft and the impeller to be shifted axially in relation to the pump casing and stationary deflector plate to provide optimum running conditions and also enable various types of drives to be employed in association with the drive shaft including a hollow shaft motor which has the necessary supporting thrust bearings already incorporated therein thereby providing a relatively simple pump con- 3,363,576 Patented Jan. 16, 1968 struction and one which is quite eflicient in operation, rugged and long lasting as well as being relatively inexpensive to manufacture, operate and maintain.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

FIGURE 1 is a side elevational view of the pump of the present invention illustrating a representative orientation thereof;

FIGURE 2 is a top plan view of the construction of FIGURE 1;

FIGURE 3 is a vertical sectional view taken substantially upon a plane passing along section line 3-3 of FIGURE 2 illustrating the structural details of the pump;

FIGURE 4 is a transverse, sectional view taken substantially upon a plane passing along section line 4-4 of FIGURE 3 illustrating the orientation of the rotatable impeller, the stationary deflector plate and the portion of the casing having the discharge outlet therein;

FIGURE 5 is an exploded group perspective view illustrating the impeller, sectional shaft, stationary deflector plate and the portion of the casing having the discharge outlet therein orientated above the impeller for clarity rather than below the deflector plate;

FIGURE 6 is an enlarged fragmental perspective view of a portion of the deflector plate illustrating the openings and guiding vanes mounted thereon;

FIGURE 7 is an enlarged fragmental sectional view taken substantially upon a plane passing along section line 7--7 of FIGURE 4 illustrating the relationship of the impeller, stationary deflector plate and casing;

FIGURE 8 is a partial sectional view similar to the lower portion of FIGURE 3 but with the pump converted to a two-stage operation;

FIGURE 9 is a perspective view ,of an intermediate section of the pump casing illustrating the stationary vanes employed on a partition plate forming a part thereof; and 7 FIGURE 10 is a side elevational view illustrating a portion of the pump having the drive shaft associated with a hollow shaft motor.

Referring now specifically to the drawings, the numeral 10 generally designates the pump construction of the present invention which is illustrated in vertical orientation. It is pointed out that the pump may also be orientated with the rotational axis thereof horizontally or at any other position. The pump construction includes a housing assembly generally designated by the numeral 12 and which includes a lower section or discharge section 14 and an upper section or inlet section 1-6. The inlet section 16 includes a circular plate portion 18 and a conical plate portion 20 inwardly of the circular plate portion 18 which is substantially flat. The conical plate portion 20 extends inwardly and away from the discharge casing section 12 and has a tubular inlet pipe 22 communicated and rigidly joined to the center thereof as illustrated in FIGURE 3. Intermediate the ends of the inlet pipe 22 is an inlet adapter or pipe 24 communicating therewith for providing a water inlet or inlet for other liquids. The inlet adapter or pipe 24 may be internally threaded as at 26 or may be provided with a flange at the outer end thereof for connection with either an externally threaded pipe 28 or a flange pipe depending upon the particular installation or requirements encountered. While the inlet adapter 24 is illustrated in perpendicular relation to the pipe 22, it is pointed out that this orientation may vary again depending upon the particular installation requirements encountered.

The discharge section 14 includes a cylindrical wall portion 30 and an outwardly extending flange 32 in abutting engagement with the flange or plate 18. The cylindrical wall 30 is provided with a conical end plate 34 which extends away from the plate 20 in diverging relation and terminates in a tubular adapter 36 having a removable cap 38 thereon which enables a sleeve bushing 40 or the like to be inserted into the tubular member 36 for a purpose described hereinafter. The removable cap 38 enables repair or replacement of the bushing 40 and also enables the pump to be converted to a multiple stage pump as set forth hereinafter.

At one point on the cylindrical wall 30, there is provided a tangential discharge pipe 42 in communication with an outlet opening 44 in the cylindrical wall. 30. The outlet pipe 42 may also be internally threaded or provided with a peripheral flange for connection with a flanged pipe or the like depending upon the installation requirements encountered.

The discharge section of the casing is also provided with an annular cylindrical flange 46 rigid with the wall 34 and projecting inwardly therefrom in concentric relation to the cylindrical wall 30 so that water will be retained against the wall 30 and will discharge through the slot-like opening 44. Also, the flange 32 is provided with openings 48 for receiving assembly bolts 50 or the like which secure the components of the pump assembly together. Also, the inlet section includes a supporting flange 52 engaged against the flange 1S and the bolts 58 also secure the supporting flange 52 assembled with the flanges 18 and 32. Extending upwardly from the supporting flange 52 and in converging relation is a plurality of circumferentially spaced supporting members 54 which are interconnected by a plate 56 at the upper end thereof having a central aperture 58 which receives a bearing supporting sleeve 68 having a projecting flange 62 in the center thereof so that the flange 52 is secured to the plate 56'by a plurality of bolts, cap screws or the like 64 thus fixedly supporting the sleeve 60 as illustrated in FIGURE 3.

Disposed within the sleeve 60 is a drive shaft 66 having an upper threaded portion 6-8 and a lower threaded portion 70. Surrounding the drive shaft 66 is a sleeve member 72 provided with an internally tapered socket 74 at the upper end thereof and a similar socket 74 at the lower end thereof which receive tapered locking elements 78 and 80 respectively which are engaged by lock nuts 82 and 84 respectively for enabling the position of the shaft to be shifted in relation to the bearing sleeve 6! by virtue of the tapered elements 80 locking the sleeve 72 to the shaft 66 for rotation therewith and by engagement of a flange on the tapered locking elements, or at least the bottom locking element 80 with a bottom plate 86 rigid with the sleeve 80. Between the bottom plate 86 and a recess 88 in the bottom end of the sleeve 72 is a thrust hearing assembly 90 so that the weight supported by the shaft 66 will be supported by the thrust bearing 96 and also a similar thrust bearing 92 is provided between a shoulder 94 at the upper end of the sleeve 72 and a removable top plate 96 held rigid with the bearing supporting sleeve 60 by cap screws or bolts 98. Thus, the shaft 66 may be moved axially in relation to the sleeve 60 which is stationary by threading the tapered locking elements 78 and 80 in relation to the threaded portions 68 and '70 on the shaft 66.

The lower end of the drive shaft 66 is provided with an axial threaded stud 100 of reduced cross-sectional area received within an internally threaded socket 102 formed in the upper end of a pump shaft 104 which also has an internally threaded socket 1% in its bottom or lower end as illustrated in FIGURE 3. Thus, the shaft 66 may be separated from the pump shaft 184 so that a different type of shaft may be provided when employing a hollow shaft electric motor to drive the motor in a manner described hereinafter.

At the upper end of the inlet 22, a seal sleeve 108 is provided which is removably positioned within the upper end of the pipe 22 and is spaced from the pipe 22 by an annular space 118 so that water entering the inlet 22 will circulate around the sleeve 108 thus cooling the seal. Interiorly of the seal sleeve 198 is a coil compression spring 112 and a lower sealing assembly 114 and an upper sealing assembly 116 and a retaining plate 118 removably retains the sealing assembly and the sealing sleeve 103 in position. The retaining plate 108 is provided with lubrication fittings 121 with one of the lubrication fittings being capable of releasing air so that the seal sleeve 108 may' be filled with grease while any air trapped therein will be vented to the atmosphere.

The pump shaft 1114 is provided with an impeller generally designated by the numeral 122 which includes a substantially circular plate 124 that has a central hub portion 126 that is rigidly aflixed to the shaft 104 in any suitable manner. The plate 124 is substantially flat but does incline slightly toward the discharge casing section when installed therein. On the face of the plate 124 facing the drive shaft 66, there is provided a plurality of spaced radial vanes 128 which are curved in a spiral manner as illustrated in FIGURES 4 and 5 with the inner end 131) of each vane being spaced from the hub 26 and generally aligned with the internal diameter of the inlet pipe 22. The outer ends of the vanes 128 are substantially flush with and aligned with the peripheral edge of the plate 124 as indicated at 132. Thus, as water enters the inlet pipe 22 and the impeller 122 is rotated in the direction illustrated by the arrow in FIGURE 4, the water will be moved in a radial and circular manner as impelled by the vanes 128 outwardly toward the periphery of the casing. As illustrated in FIGURE 3, the depth of the vanes 128 decreases slightly inasmuch as the plate 26 converges slightly in relation to the plate 124 from the center thereof towards the outer periphery thereof.

Disposed within the discharge section and specifically received in the confines of the cylindrical wall 30 is a water guide plate or deflector generally designated by numeral 134 which includes a central disc-shaped plate 136 which has a central hub 138 journaling the shaft 104. The plate 136 extends outwardly from the hub 138 in converging relation to the plate 124 of the impeller 122 and has a recess 140 formed therein which axially receives rather closely the periphery of the impeller plate 124. By adjusting the drive shaft 66, the relationship of the impeller to the plates 136 and 20 may be adjusted for proper running conditions and operation of the pump.

Outwardly of the recess 14%), the deflector 134 has a flange 142 projecting outwardly therefrom and received in a recess 144 in the wall 30 and the flange 142 is secured to the wall 30 in any suitable manner which stationarily retains the deflector 134 in the discharge section of the casing. Thus, the only rotating part of the pump other than the shaft is the impeller 122.

On the flange 142, there is provided a plurality of arcuate plates or segments of plates 146 which are perpendicular to the flange 142 and disposed at the inner edge of arcuate slot-like openings 143 which extend through the flange 142 inwardly of the portion of the flange which rests on the recess 144 in the cylindrical wall 30. Thus, water is discharged from the impeller through the openings 148 and axial deflection of the water is enhanced by the provision of arcuate deflector segments 150 which extend radially outwardly from the arcuate segments 146 to a position closely adjacent the internal surface of the cylindrical wall 30. The entrance ends of the deflector plates 150 designated by numeral 152 are rigid with the edge of the segment 146 remote from the end of the slot 148 whereas the other end of the deflector plate 159 designated by nu meral 154 is rigidly fixed to the flange 142 at the other end of the slot 148 thus deflecting water through the slot 14-8.

To further facilitate movement of water from the discharge section, a deflecting baflie 156 extends from the annular ring 46 to the cylindrical wall 30 in an inclined manner so that the baflie 156 will assure that water circulating between the flange 46 and the wall 30 will pass outwardly through the slot-like opening 44.

Thus, in operation, water or other liquid passes into the inlet adapter 24, the inlet pipe 22 thus cooling the seal and thence into the face of the impeller 122. Due to rotation of the impeller and the vanes 128, water will be moved in a circular and radial direction and will be discharged against the arcuate segments 146 and between the ends of adjacent arcuate segments which are spaced radially from each other inasmuch as the arcuate segments 146 also have the inlet end adjacent the shoulder 140 and their outlet end adjacent the outer edge of the flange 142 and the slots 148 are correspondingly inclined. The radial and circular movement of the water will cause the water to impinge against the inclined deflector segments 150 thus further causing the water to flow in axial directions to the slot-like openings 148. The further circular movement of the water is contained between the ring 46 and the cylindrical wall 30 and ultimately discharged through the slotlike opening 44.

When it is desired to convert the pump to a multiple stage pump, the discharge section 14 of the casing is unbolted and removed and an intermediate section or sections 158 are employed between the existing inlet section 16 and the original discharge section 14. In this construction, the initial impeller 122 and the initial deflector 134 are left in place and an additional stub shaft 160 is screwthreaded into the socket 106 as illustrated in FIGURE 8. The shaft 160 has a reduced area 162 rigidly affixed to the hub 164 of an impeller 166 having an impeller plate 168 and vanes 170 thereon which is identical to the impeller 122. A deflector 172 is also employed in exactly the same manner as deflector 134 and is associated with the lower discharge section 14 in the same manner as the deflector 134 was associated therewith.

The intermediate section 158 includes a cylindrical wall 174 which is identical to the cylindrical wall 39 except that the slot-like opening 44 has been eliminated and of course the discharge outlet or pipe 42 has been eliminated thus forming a continuous cylindrical wall 174. The wall 174 is associated with the deflector 134 in the same manner as the wall 36 was associated with the deflector 134. An inclined wall 176 is provided which is identical to the wall 34 except that the annular ring 46 and the baflle 156 are eliminated and in lieu thereof, a plurality of radial vanes 178 are provided thereon which are spirally curved inwardly as illustrated in FIGURE 9 to guide the water moving in a circular path back towards the center of the plate 176 for discharge through a central enlarged opening 180 which is in concentric relation to the hub 138 of the deflector 134. Integral with the plate 176 is a plate 182 which also joins with the periphery of the opening 180 and closely overlies the vanes 170 on the second impeller 166 in the same manner as the plate 20 overlies the vanes 128 on the first impeller 122. The plate 182 is identical to the plate 20 except that the inlet opening at the center hereof is joined with the plae 176 rather than being joined to the inlet pipe 22. Thus, the water enters the first stage and is discharged through the ports 148 in the manner described. Then, rather than being discharged from the discharge section, the water enters the intermediate section 158 and is conveyed back to the center thereof by the vanes 178 and then discharged through the opening 180 into the second stage where the impeller 168 causes the water to move radially and outwardly and in a circular path for discharge through the ports in the second deflector 172 into the discharge section 14 so that it can then pass out through the slot-like opening 44 and the tangential discharge pipe 42 in the manner described previously.

For supporting the plates 176 and 182 and rigidifying them, suitable reinforcing gussets 184 are provided and also gussets 186 may be provided for supporting the inlet 6 pipe 22 in relation to the plate 20 thus forming a rigid unit.

When converting the device for use with a hollow shaft electric motor 188, the bearing sleeve 80, sleeve 72 and related structure is removed along with the upper section of the drive shaft which may be sectional as at 190 inasmuch as the hollow shaft 192 of the hollow shaft motor 188 will then form the upper portion of the drive shaft 66. The same type lock nuts or any other suitable lock nuts 194 may be used for orientating the motor 188 properly in relation to the drive shaft 66 and also a suitable supporting bracket 196 may be provided for the motor 188. Such bracket may be as illustrated in FIGURE 10 or in some instances the motor may be provided with a supporting base on the end thereof for supporting engagement with the plate 56. Any suitable drive arrangement may be provided for the pump and the pump may be orientated in various positions with the device being conveniently supported by a plurality of supporting legs 198 which includes outwardly extending feet 200 for attachment to any supporting surface desired. The legs 198 are attached to the flange 32 of the discharge section 14 by certain of the fastening bolts 50.

The construction in which the inlet water comes in at the drive end of the pump enables a compact construction to be attained and also retains the seal structure relatively cool so that it will have a long life expectancy. Also, this provides for effective adjustment of the position of the impeller and by varying the size factors, the particular volume of the pump and the speed of rotation may be varied as desired as well as the pressure varied by altering the clearance factors and varying the number of stages in the pump.

The foregoing is considered as illustrative only of the principles of the invention. Further since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the invention as claimed.

What is claimed as new is as follows:

1. A rotary pump comprising a casing having :a peripheral outlet and a central inlet, impeller means within said casing for conveying water from the central inlet to the peripheral outlet, a shaft connected with said impeller means and extending outwardly through the inlet whereby incoming fluid will pass over and around at least a portion of said shaft when passing into the casing inlet, said impeller means including a rotating impeller plate having a plurality of radial vanes on one surface thereof, said vanes also curving spirally to move water radially and in a circular path during rotation of the impeller plate, and V a deflector disposed concentrically of the impeller plate for deflecting water from the outlet, said deflector including an annular flange separating the casing into two compartments, said flange having openings therein for enabling axial tllOW of water therethrough froma portion of the casing on the side of the impeller plate having vanes thereon to the portion of the casing rearwardly thereof, the portion of the casing disposed rearwardly of thehimpeller plate having the outlet communicated therewit 2. The structure as defined in claim 1 wherein said flange is also provided with arcuate segments in perpendicular relation thereto having an entrance end closer to the discharge ends of the vanes and an exit end closer to the periphery of the flange.

3. The structure as defined in claim 2 together with a deflector plate attached to each of said arcuate segments with the entrance end of each plate being disposed on the segment remote from the opening through the flange and the exit end thereof being connected to the flange adjacent the other end of the opening through the flange '2? thus guiding and deflecting water through the opening in the flange.

4. The structure as defined in claim 3 wherein said portion of the casing rearwardly of the impeller plate includes an annular ring forming an annular column for receiving water.

5. The structure as defined in claim 4 together with a baifle extending between the annular ring and the exterior wall of the casing adjacent one edge of the outlet for deflecting water moving in a circular path around the ring outwardly through the outlet.

6. The structure as defined in claim 5 wherein the portion of the casing having the annular ring therein is removable from the portion of the casing forwardly of the impeller plate, and an intermediate casing section adapted to be disposed between the separable sections of the easing and including a central enlarged outlet therein and an imperforate wall otherwise to guide water from the discharge of the impeller and deflector back to the center of the casing, and a second impeller and deflector disposed between the intermediate casing section and the removable portion of the casing having the outlet therein for forming a multiple stage pump.

7. The structure as defined in claim 6 wherein the front wall of the intermediate section receiving water from the deflector includes radially inwardly extending and spirally curved vanes for guiding Water back to the central outlet therein.

8. The structure as defined in claim 1 wherein the inlet in said casing includes a sleeve concentric with the shaft for sealing the shaft in relation to the casing, said sleeve having the major portion of the external periphery thereof in communication with the inlet whereby incoming liquid will cool the sealing sleeve, said casing including bearing support means for said shaft, and means adjusting the position of the bearing means and shaft axially for adjusting the position of the impeller in relation to the casing and deflector.

References Cited UNITED STATES PATENTS 2,366,964 1/ 1945 Howard 103108 2,693,761 11/1954 Mylting 103-111 3,070,027 12/ 1962 Feltus 103-108 3,079,865 3/ 1963 Lipe et al. 103-87 3,116,696 1/1964 Deters 103102 3,188,966 6/1965 Tetlow 103-108 3,288,074 11/1966 Hall 103102 FOREIGN PATENTS 17,283 1915 Great Britain. 188,547 11/ 1922 Great Britain.

DONLEY J. STOCKING, Primary Examiner.

HENRY F. RADUAZO, Examiner. 

